The first place to start is the caliper. If it has pins it's either a KH or Delco, and if it slides it's Bendix. Big Bendix uses a 3.1" piston, small Bendix a 2.6". KH has a 2.75" piston, Delco a 2.6". I would go so far as to assume the rotor is for the caliper type, as most likely the entire system was "borrowed" from a single donor. The only fly in that ointment is the 77-78 small Bendix. As Andrew points out, they use the small Bendix caliper but the big Bendix spindle and bearings. Since few people used those I think he's safe to assume he has the small spindle as well. Unfortunately there's only one way to find out. I'd order one rotor and check fit first. On May 3, 2007 andrew hay wrote: > rather belatedly i realize i should forward this to the group; i know > folks here have parts books... > > i know of 3 possible calipers: > the '74-8 big bendix > the '77-'81 small bendix > the '82-9 low drag, which might be bendix or delco or both > > and in '79 they changed from the big spindle used only with the big > and small bendix rotors, back to a small spindle like previously used, > and a rotor that was continued through the end of rwd cars. this > probably fits the early spindles - same #6/#2 bearings - but whether > it'd be right relative to the caliper bracket i don't know. [this > would be useful info for folks with '77-8 small cars, as the big > spindle rotors are getting expensive and hard to find and it could > widen the list of possible donors for swapping to the cheaper later > rotor] > > he -probably- has the small bendix. > > " From: "Gary" <javelin@xxxxxxxxxxxx> > " Date: Fri, 27 Apr 2007 17:48:44 -0400 > " > " > " > " Hello: > " > " I found your email via Planet Houston guy's web pages. > " > " > " > " I have a 1970 Javelin that has single piston calipers on it. I have a set of > " the Kelsey Hayes versions off the car, but they are clearly not the same?? > " > " I know that Bendix also made a single piston that was used in conversions. > " Do you by chance have any pictures or a part number I could look for on the > " calipers? I want to replace rotors etc. but without knowing what I am > " looking at is a problem. > " > " > " > " Thanks much, > " > " > " > " Gary L. in Maine > ________________________________________________________________________ > Andrew Hay the genius nature > internet rambler is to see what all have seen > adh@xxxxxxxxxxxxxxxxx and think what none thought > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://www.amc-list.com/mailman/listinfo/amc-list ============================================================= Posted by wixList Archiver -- http://www.amxfiles.com/wixlist _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list